I know with the 4L60 and 4L80 behind the gas motors one of the big things to firm up the shifts is to reduce the shift time in the tune. Can this be reduced any on the stock allison that is behind my 2001 LB7 duramax with out any harm to the transmission?
2001 V6 M5 firebird: drop in K&N, 12bolt with posi and 4.30s, magnaflow muffler, gutted cat.
9.5 at 73 in the 1/8th on street tires
Yes you can, but you have to be carefull. Decreasing times by to much will put in 2 gears at the same time and it burns an allison up pretty quick. I suggest leaving these stock.
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